Validity of the Short Form of the Parenting Stress Index for Fathers of Toddlers

We examined the psychometric properties of two scales of the parenting stress index-short form (PSI-SF) in a low-income sample of fathers of toddlers. The factor structure, reliability, and validity of the parental distress and parent–child dysfunctional interaction subscales were assessed for 696 fathers in a multi-site study of Early Head Start. Confirmatory factor analyses (CFA) compared the fit of the developer recommended two-factor scales with five-factor scales theoretically derived and supported with mothers. Our results suggested that two subscales from the PSI-SF were reliable and valid for this sample of racially diverse, low-income fathers of toddlers. However, these subscales capture multiple dimensions of parenting stress and results also supported the use of more narrowly defined aspects of parenting stress that included general distress, distress specifically related to parenting demands, problematic interactions of the father–toddler dyad, perceptions of the child, and parental perceptions of self as a parent. These unidimensional scales may prove useful in research and clinical activities by allowing researchers to elucidate the mechanisms through which stress impacts parenting and permitting clinicians information to develop more targeted interventions for young children and their families.     

Relations Between Emotion Regulation, Parenting, and Psychopathology in Young Maltreated Children in Out of Home Care

Young maltreated children, birth to three years, represent the age group with the highest rates of maltreatment in the United States (ACYF 2007). There are few studies to date that have investigated early childhood maltreatment and its effects on emotion regulatory processes and psychopathology. In response, the current investigation uses a dyadic assessment procedure to examine the relationship between parenting, emotion regulation, and symptoms of psychopathology among maltreating and non-maltreating parent–child interactions. The participants in this study were 123 children (66 maltreated and 57 nonmaltreated) from ages 1–3. Child and parent affect and child effortful control were observed during a parent–child interaction task. Symptoms of psychopathology were measured using the Child Behavior Checklist. The maltreated children exhibited more anger, more internalizing symptomatology, and less positive affect compared to non-maltreated children. Among maltreated children, emotion dysregulation was associated with internalizing symptomatology. Moreover, these data reveal parental positive affect was associated with lower child internalizing symptomatology and parental anger was associated with higher child internalizing symptomatology in the entire sample. This investigation offers evidence that emotion dysregulation subsequent to poor dyadic interactions is associated with early child maltreatment. These data suggest that maltreated children experience difficulties in emotion regulation which may be related to their higher levels of behavioral symptomatology.     

Identifying unreliable informants: do children excuse past inaccuracy?

In three experiments (N = 123; 148; 28), children observed a video in which two speakers offered alternative labels for unfamiliar objects. In Experiment 1, 3‐ to 5‐year‐olds endorsed the label given by a speaker who had previously labeled familiar objects accurately, rather than that given by a speaker with a history of inaccurate labeling, even when the inaccurate speaker erred only while blindfolded. In Experiments 2 and 3, 3‐ to 7‐year‐olds showed no preference for the label given by a previously inaccurate but blindfolded speaker, over that given by a second inaccurate speaker with no obvious excuse for erring. Children based their endorsements on speakers’ history of accuracy or inaccuracy irrespective of the speakers’ information access at the time, raising doubts that children made mentalistic interpretations of speakers’ inaccuracy.     

Socially dependent auditory laterality in domestic horses (Equus caballus)

Laterality is now known to be an ubiquitous phenomenon among the vertebrates. Particularly, laterality of auditory processing has been demonstrated in a variety of species, especially songbirds and primates. Such a hemispheric specialization has been shown to depend on factors such as sound structure, species specificity and types of stimuli. Much less is known on the possible influence of social familiarity although a few studies suggest such an influence. Here we tested the influence of the degree of familiarity on the laterality of the auditory response in the domestic horse. This species is known for its social system and shows visible reactions to sounds, with one or two ears moving towards a sound source. By comparing such responses to the playback of different conspecific whinnies (group member, neighbor and stranger), we could demonstrate a clear left hemisphere (LH) preference for familiar neighbor calls while no preference was found for group member and stranger calls. Yet, we found an opposite pattern of ear side preference for neighbor versus stranger calls. These results are, to our knowledge, the first to demonstrate auditory laterality in an ungulate species. They open further lines of thought on the influence of the social “value” of calls and the listener’s arousal on auditory processing and laterality.     

Solving the Dilemma: Family Communication About Organ Donation Among Chinese,Japanese, and Caucasian American College Students1

This study surveyed 800 students in the United States, Hong Kong, and Japan to determine associations between the components of the theory of reasoned action and early communication about organ‐donation decisions within the family. Results showed that among the 3 ethnic groups, Japanese students reported the least favorable attitudes and subjective norms about organ donation and were also the least likely to discuss this topic with their families. Moreover, the moderating effect of ethnicity indicated that attitudes were a significant factor of family discussion among American and Japanese students but not among Chinese students. Subjective norms were more predictive of family discussion among Chinese students than among American and Japanese students.     

The Social Conditions for Successful Peer Education: A Comparison of Two HIV Prevention Programs Run by Sex Workers in India and South Africa

Peer education is a community-based intervention being implemented worldwide as an approach to HIV prevention. However, its results are inconsistent, with little consensus on why some projects succeed while others fail. Considering peer education as an ‘intervention-in-context’, we systematically compare the context and the implementation of two peer education interventions run by sex workers, one in India and one in South Africa, which produced contrasting outcomes. In so doing, we aim to identify key factors in the projects’ successes or failures that may inform future peer education efforts. The Indian project’s relative success was facilitated (1) by a more stable and supportive social, material and political context, and (2) by a community development ethos which devoted significant resources to sex workers’ involvement, ownership and empowerment, as opposed to a biomedical approach which marginalised sex workers’ concerns. We conclude with lessons learned and implications for current trends in peer education.     

A Social Disorganization Perspective on Bullying-Related Attitudes and Behaviors: The Influence of School Context

Social disorganization theory suggests that certain school-level indictors of disorder may be important predictors of bullying-related attitudes and behaviors. Multilevel analyses were conducted on bullying-related attitudes and experiences among 22,178 students in 95 elementary and middle schools. The intraclass correlation coefficients indicated that 0.6–2% of the variance in victimization, 5–10% of the variance in retaliatory attitudes, 5–6% of the variance in perceptions of safety, and 0.9% of the variance in perpetration of bullying was associated with the clustering of students within schools. Although the specific associations varied somewhat for elementary schools as compared to middle schools, the hierarchical linear modeling analyses generally suggested that school-level indicators of disorder (e.g., student–teacher ratio, concentration of student poverty, suspension rate, and student mobility) were significant predictors of bullying-related attitudes and experiences. Student-level characteristics (i.e., sex, ethnicity, status in school) were also relevant to students’ retaliatory attitudes, perceptions of safety, and involvement in bullying. Implications for school-based research and violence prevention are provided.     

The cerebellum and language: Evidence from patients with cerebellar degeneration

Clinical and imaging studies suggest that the cerebellum is involved in language tasks, but the extent to which slowed language production in cerebellar patients contributes to their poor performance on these tasks is not clear. We explored this relationship in 18 patients with cerebellar degeneration and 16 healthy controls who completed measures of verbal fluency (phonemic and semantic), word stem completion, and oral naming speed. Cerebellar patients showed significantly slower response times when naming common nouns, which correlated with their degree of motor impairment. Patients were significantly impaired on both phonemic and semantic fluency measures compared to controls (p < 0.001), even when naming speed was entered as a covariate (p = 0.03). On the word stem completion task, patients were significantly less accurate (p < 0.001), had more errors due to non-responses (p = 0.008), and were slower to respond (p = 0.036) than controls; group effects were significant for overall accuracy, but not response time, when the effects of naming speed were covaried (p = 0.014). These findings suggest that cerebellar patients’ poorer performance on language tasks cannot be explained solely by slower language production, and that the integrity of cerebellar-prefrontal loops might underlie poorer performance on measures of executive function in cerebellar patients.     

Genetic and environmental stability differs in reactive and proactive aggression

The aim of this study was to examine stability and change in genetic and environmental influences on reactive (impulsive and affective) and proactive (planned and instrumental) aggression from childhood to early adolescence. The sample was drawn from an ongoing longitudinal twin study of risk factors for antisocial behavior at the University of Southern California (USC). The twins were measured on two occasions: ages 9–10 years (N=1,241) and 11–14 years (N=874). Reactive and proactive aggressive behaviors were rated by parents. The stability in reactive aggression was due to genetic and nonshared environmental influences, whereas the continuity in proactive aggression was primarily genetically mediated. Change in both reactive and proactive aggression between the two occasions was mainly explained by nonshared environmental influences, although some evidence for new genetic variance at the second occasion was found for both forms of aggression. These results suggest that proactive and reactive aggression differ in their genetic and environmental stability, and provide further evidence for some distinction between reactive and proactive forms of aggression. Aggr. Behav. 35:437–452, 2009. © 2009 Wiley‐Liss, Inc.